Fisheries Science

, Volume 71, Issue 1, pp 159–167

Putative ultraviolet-photosensitivity in the retina of 1-year-old nibbler Girella punctata: Based on molecular and histological evidences

  • Taeko Miyazaki
  • Masatake Yamauchi
  • Mariko Takami
  • Jun Kohbara
Article

DOI: 10.1111/j.1444-2906.2005.00943.x

Cite this article as:
Miyazaki, T., Yamauchi, M., Takami, M. et al. Fish Sci (2005) 71: 159. doi:10.1111/j.1444-2906.2005.00943.x

Abstract

Ultraviolet (UV) photosensitivity in 1-year-old nibbler Girella punctata, which inhabits the coastal reefs of Japan, was investigated, based on retinal histology and visual pigment cDNA cloning. The retinal cone mosaic of the nibbler showed a square-shaped arrangement of double cones with a central single cone and accessory corner cones, which are representative putative UV-photoreceptors, at each corner of the square. Six cDNA fragments encoding putative visual pigment of nibbler were isolated and sequenced. Its deduced amino acid sequences were classified into five classes of opsin: UV, blue, green (one gene each), red (two genes), and rod (one gene) by comparison with other teleost opsins and phylogenetic analysis. Possible contributions of UV-sensitivity in nibbler was discussed regarding homing, feeding, and schooling.

Key Words

cDNA cloning Girella punctata retinal cone mosaic ultraviolet-opsin ultraviolet-photosensitivity visual pigment 

Copyright information

© The Japanese Society of Fisheries Science 2005

Authors and Affiliations

  • Taeko Miyazaki
    • 1
  • Masatake Yamauchi
    • 2
  • Mariko Takami
    • 1
  • Jun Kohbara
    • 1
  1. 1.Department of Life Sciences, Faculty of BioresourcesMie UniversityTsu, MieJapan
  2. 2.Research Center for Radiation SafetyNational Institute of Radiological SciencesInage, ChibaJapan

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